Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0d7a6546ed4d3cf…

MALICIOUS

PDF

43.4 KB Created: 2020-08-14 15:22:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e88c58fb9709ad560c498ff83b5b0ae SHA-1: 2f7486fca1aedf7aa256d186be575fa858edcfbe SHA-256: e0d7a6546ed4d3cf1df69ffe738f2f2be6cec20091305314bd18e2e615486a0f
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body also contains the URL 'https://ttraff.ru/pify?keyword=letter+of+recommendation+from+professor+template', which is also flagged as a malicious redirector. The 'SE_MFA_LURE' heuristic indicates the document is designed to harvest credentials or MFA codes, consistent with phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=letter+of+recommendation+from+professor+template In PDF document text
    • http://dufepe.justintimeconsultancy.org/uploads/1/3/1/0/131071164/301863077ab436d.pdfIn PDF document text
    • http://files.allthingsec.com/uploads/1/3/1/1/131164202/xikefagoja.pdfIn PDF document text
    • http://files.alexsarkisian.com/uploads/1/3/1/3/131398054/43a885825b2e523.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/nazolugenivakox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1068/files/83564512312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/safiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/pazeravizibarojevema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8127/6319/files/24331221178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/20391736987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0412/5599/files/95503197285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/41922593198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1659/1272/files/69106019625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9246/7109/files/93289936053.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A92 5240 bytes
SHA-256: f9dbe5253814321408d801895c9fe0801116a63c431acb2c87a3a076415f9120
font_01_sfnt_off00007c4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4B 10740 bytes
SHA-256: 6e286b637ae417a6fefeef540e04e7ede1bd0b062a3e42ef77f967a6cc826c13

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